Algebra 1

by
Hall, Prentice

Answer

$m=0$

Work Step by Step

To find the slope, we use the formula $m=\frac{y_2-y_1}{x_2-x_1}$.
We plug in the $x$ and $y$ values from the given coordinate pairs: $m=\frac{1-1}{7-(-2)}$
We simplify above and below the fraction bar with subtraction: $m=\frac{0}{9}$
We divide the fraction: $m=0$